The growing awareness of the climate crisis has increased the political and industrial interest in the topic of how industrial off-gases like carbon dioxideCarbon dioxide and carbon monoxide may be put to use, also known as carbon capture and utilisation (CCUCCU). It is a rapidly changing topic as increasing efforts are made towards research, development, innovation, and implementation of various technological options. This article takes a look at some of the possible ways the CO rich off-gas from sealed submerged arc furnaces producing Mn ferroalloysFerroalloys may be used, with special attention on the options which goes beyond simply burning the gas as fuel or energyEnergy recovery. The discussion covers the potentials, challenges, uncertainties, and technological maturity of different alternatives. It is clear from the current report that it is possible to use CO gas for many things, including some exciting new and immature opportunities. Gas composition (purity) is an important issue for several applications. For many options, it may also be necessary to address the challenges connected to variations in gas pressure, availability/volumetric flow, and composition.